JPS61124607A - Diaper cover for absorbing pad - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a diaper cover for an absorbent pad.

[Background of the invention]

It is well known that diaper covers for diapers or absorbent diapers are available on the market, made of waterproof cloth. However, there are problems such as the need to replace the cap as the child grows.

In addition, in Europe and other countries, disposable diapers made of synthetic resin film are used (for example, Japanese Patent Application Laid-open No. 19645/1983), but they have problems with ease of wear, how they fit against the child's skin, and the risk of lukewarm urine. Problems such as leakage are the 9th problem.

On the other hand, recently, disposable diapers that do not require a diaper cover or are a combination of a diaper and a diaper have become popular. As is well known, this diaper is made up of a liquid-permeable top sheet, a liquid-impermeable pack sheet, and an absorbent material (composed of rough pulp, tissue, polymeric water-absorbing agent, etc.) located in between. As a result, the entire diaper has to be thrown away every time a diaper is changed, which not only increases costs but also poses a major problem in terms of disposal. Additionally, disposable diapers that are integrated with pants are bulky, and improvements have been desired in terms of portability.

[Purpose of the invention]

The purpose of the present invention is to solve the above-mentioned problem of conventional disposable disposable diapers that combine diaper covers, diapers, and pants, and to create a disposable absorbent pad that is cheaper and easier to wear. Our goal is to provide diaper covers.

[The bottom of the invention]

The present invention provides a liquid-impermeable sheet made of a synthetic resin film or a non-woven fabric or paper laminated with a synthetic resin on the outside, and a surface sheet made of non-woven fabric as the side that comes into contact with human skin.
A diaper cover for an absorbent pad is provided with an elastic member that can be stretched and returned in the longitudinal direction on both sides of the crotch area, and a cushioning sheet is interposed between a liquid-impermeable sheet and a top sheet, and the liquid-impermeable This diaper cover for an absorbent pad is characterized in that an elastic member is provided in the longitudinal direction between the sheet and the cushioning sheet or the nonwoven fabric and the cushioning sheet. By attaching an elastic member in the crotch area, using a soft surface material sheet made of non-woven fabric, and providing an elastic cushioning material between the liquid-impermeable sheet and the surface sheet, The diaper cover for the Nen-absorbing pad has been significantly improved in fitability, and an elastic member made of the same material as the elastic member attached to the crotch area is attached not only to the crotch area but also to the center of the upper side of the back support around the torso. Is it even easier to wear by attaching it? Further improvements are also possible.

For adhesion to the liquid-impermeable sheet, top sheet, cushioning sheet, and elastic member, any means used for ordinary diapers, such as hot-melt bonding or heat seal adhesion, may be used.

The diaper cover for an absorbent pad of the present invention is much cheaper than conventional cloth diaper covers, and is also disposable. However, from the viewpoint of resource conservation, it is desirable to use it several times.

In other words, unlike conventional paper diapers that are integrated with pants, the diaper cover can be used several times without replacing only the pads, which not only saves a lot of money on diapers, but also saves on contributions. It is desirable from the viewpoint of source and disposal. Well, compared to conventional disposable diapers, they can be made much more compact, making them much more convenient to carry. In addition, an elastic member is attached to the crotch area to improve adhesion to the crotch.
Compared to covers made of oily film, significant improvements can be made in terms of adhesion, appearance, etc. In addition, the inclusion of a cushioned sheet improves the diaper's slip/contact properties.
In addition, the increased thickness makes it easier to handle during use and improves comfort, and since the nonwoven fabric is on the inside, it feels good on the skin and is less sticky, which helps prevent rashes. Of course, it can be used in exactly the same way as commercially available disposable diapers that are integrated with pants.

Embodiments of the present invention will be described below based on the drawings.

1, 2, and 3 show a partially cutaway exploded view of the diaper cover of the present invention, and FIG. 4 is a perspective view showing a state in which the diaper cover shown in FIG. 1 is attached. Further, FIGS. 5, 6, and 7 are cross-sectional views taken along the line X-X' of the crotch portion of the diaper cover shown in FIGS. 1 to 3.

In the drawings, 1 is a liquid-impermeable sheet, 2 is the front side of the diaper cover, 3 is the inseam area, 4 is the waist and back rest, 5 is around the thighs, 6 is around the stomach, 7 is the length, 8 is a mounting tape, 9.10 is a stretchable elastic member, 11 is an adhesive part, 1
2 is a nonwoven fabric, 13 is a nonwoven fabric surface of a laminate sheet, 14
15 indicates the film surface of the laminated *-) sheet, and 15 indicates the cushioning sheet.

The material of the liquid-impermeable sheet 1 may be a synthetic resin film such as polyethylene or polypropylene,
A liquid-impermeable sheet made of nonwoven fabric or paper laminated with a synthetic resin such as polyethylene can be used, but as long as it does not allow liquids such as urine to pass through, there is no problem even if the thickness of the film or laminate is particularly thin. do not have.

The inner nonwoven fabric 12 is preferably a wet or dry nonwoven fabric made of one or more types of fibers such as polyester, polypropylene, or rayon, and is particularly preferably made of hydrophobic polyester or polypropylene. The basis weight of the nonwoven fabric may be 10 to 1001/ypB'', and a suitable one is selected from the viewpoints of durability and ease of use.

The shape of the diaper cover is as shown in Figure 1, Figure 2, and Figure 3.
As shown in the figure, various shapes are possible, including waist circumference 6,
The thigh circumference 5, length 7, etc. should be more similar to L-4211 than J.

Reference numeral 9 indicates a stretchable elastic member attached in the longitudinal direction of the crotch area 3 according to the present invention.

Although the drawings show an example in which the stretchable elastic member 9t is provided between the liquid-impermeable sheet 1 and the cushioning sheet 150, it may be provided between the cushioning sheet and the nonwoven fabric.

As the stretchable elastic member, it is possible to use foamed urethane film, urethane rubber film, thread rubber, or elastic synthetic resin film. After stretching, hot melt adhesive or heat seal adhesive 11
You can attach it using something like this. It is preferable to attach several elastic members to the outer longitudinal direction of the crotch area at a length of approximately 50% or more of the longitudinal length of the diaper cover in order to ensure a good fit around the child's crotch. . The width of the elastic member 9 varies depending on the material, but in the case of a film, it curls at 5 to 30 m, preferably 10 to 25 m, and the desired effect cannot be fully exhibited if the width is less than 5 cm. Also, its thickness is 15~
The desired effect will be fully exhibited if it is about 3■, but there is no particular limitation to this.

Furthermore, the fit can be further improved by attaching the elastic member 10t to the back rest around the torso. Although it is possible to use the same elastic member as the elastic member attached to the crotch area, there is no problem even if this part is not attached. To be sure, the present invention has a liquid-impermeable 7-t,
Cushioning properties are provided between the surface material covering the elastic member.
It is characterized by the provision of a sheet 15, which significantly improves the fit to the skin, and also improves the appearance when viewed from the outside. .

As a cushioning sheet, foamed polyurethane □), foamed polyethylene, which has cushioning properties, -
Paper such as crepe paper, embossed paper, fluffy valve seats, etc. can be used. The thickness is 15
~51111 can be used.

FIG. 5 shows a cross section of the diaper cover of the present invention, in which a synthetic resin film 13 such as polyethylene or polypropylene is used as the liquid-impermeable sheet. This shows the case where a laminated film is used, and as shown in Fig. 6, the laminate film surface 141 may be placed on the outside with the non-woven cloth or paper side 13 on the inside, or as shown in Fig. 7. Alternatively, the nonwoven fabric or paper surface 15 may be on the inside and the laminate film surface 14 may be on the outside. Similar effects can be obtained in either case. 15 indicates a cushioned sheet.

In addition, various commercially available absorbent pads can be used for the diaper cover for the absorbent pad of the present invention, but the present inventors have developed the absorbent pad from the viewpoint of attachability to the diaper cover. It is preferable to use a device in which a pressure-sensitive adhesive is applied to an arbitrary position on the back of the proposed Nen-absorbing pad so that it can be temporarily attached to a diaper cover.

[Brief explanation of the drawing]

Figures 1, 2, and g3 show a partially cut-out, developed view of the diaper cover of the present invention, and Figure @4 shows a perspective view of the diaper cover in a relaxed state with the diaper attached. Moreover, FIGS. 5, 6, and 7 show sectional views taken along the line X-X' in FIGS. 1 to 3. 1...Liquid-impermeable sheet, 2...Front side of diaper cover, 3...Inseam area, 4...Torso area, backrest part,
5... Thigh circumference, 6... Waistline, 7... Length,
8...Tape, 9.10...Elastic member, 11...
Adhesive part, 12...Nonwoven A1.13...Nonwoven fabric surface of the laminate sheet, 14...7- of the laminate sheet
(Rum surface, 15... cushioned sheet

Claims (1)

[Scope of Claims] 1. The liquid-impermeable sheet and the cushioning sheet or the non-woven fabric and the cushioning on both sides of the crotch area of a diaper cover in which a liquid-impermeable sheet, a cushioning sheet, and a non-woven fabric are laminated in order from the outside. A diaper cover for an absorbent pad, characterized in that an elastic member that can be freely expanded and contracted in the longitudinal direction is provided between sheets. 2. A diaper cover for an absorbent pad as set forth in claim 1, further comprising a stretchable elastic member on the waist back portion of the diaper cover. 3. The diaper cover for an absorbent pad according to claim 1 or 2, wherein the liquid-impermeable sheet is a synthetic resin film, or a sheet made by laminating a synthetic resin onto a nonwoven fabric or paper.